120320191 has 2 divisors, whose sum is σ = 120320192. Its totient is φ = 120320190.

The previous prime is 120320177. The next prime is 120320197. The reversal of 120320191 is 191023021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120320191 - 2⁹ = 120319679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120320197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60160095 + 60160096.

It is an arithmetic number, because the mean of its divisors is an integer number (60160096).

Almost surely, 2^120320191 is an apocalyptic number.

120320191 is a deficient number, since it is larger than the sum of its proper divisors (1).

120320191 is an equidigital number, since it uses as much as digits as its factorization.

120320191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 120320191 is about 10969.0560669549. The cubic root of 120320191 is about 493.6807246503.

The spelling of 120320191 in words is "one hundred twenty million, three hundred twenty thousand, one hundred ninety-one".